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vekshin1
3 years ago
15

What prevents small particles from entering the lung cavity?

Biology
1 answer:
Ket [755]3 years ago
7 0

Answer:

Cilia

Explanation:

Cilia propel a liquid layer of mucus that covers the airways. The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.

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